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CVE-2014-6053 (GCVE-0-2014-6053)

Vulnerability from cvelistv5 – Published: 2014-12-15 17:27 – Updated: 2024-08-06 12:03
VLAI
Summary
The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier does not properly handle attempts to send a large amount of ClientCutText data, which allows remote attackers to cause a denial of service (memory consumption or daemon crash) via a crafted message that is processed by using a single unchecked malloc.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
http://www.ocert.org/advisories/ocert-2014-007.html x_refsource_MISC
https://github.com/newsoft/libvncserver/commit/60… x_refsource_CONFIRM
http://secunia.com/advisories/61682 third-party-advisoryx_refsource_SECUNIA
http://lists.opensuse.org/opensuse-updates/2015-1… vendor-advisoryx_refsource_SUSE
http://secunia.com/advisories/61506 third-party-advisoryx_refsource_SECUNIA
http://www.openwall.com/lists/oss-security/2014/0… mailing-listx_refsource_MLIST
http://seclists.org/oss-sec/2014/q3/639 mailing-listx_refsource_MLIST
http://ubuntu.com/usn/usn-2365-1 vendor-advisoryx_refsource_UBUNTU
https://security.gentoo.org/glsa/201507-07 vendor-advisoryx_refsource_GENTOO
http://www.debian.org/security/2014/dsa-3081 vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://usn.ubuntu.com/4573-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4587-1/ vendor-advisoryx_refsource_UBUNTU
Date Public
2014-09-20 00:00
Show details on NVD website
To clipboard 

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        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.debian.org/debian-lts-announce/2019/11/msg00032.html"
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        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://security.gentoo.org/glsa/201507-07"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://usn.ubuntu.com/4573-1/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://usn.ubuntu.com/4587-1/"
        }
      ],
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-19"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:libvncserver:libvncserver:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E7FA4C02-01AA-417C-BB93-14A18D2D3768",
                    "versionEndIncluding": "0.9.9",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
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                    "vulnerable": true
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                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
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        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier does not properly handle attempts to send a large amount of ClientCutText data, which allows remote attackers to cause a denial of service (memory consumption or daemon crash) via a crafted message that is processed by using a single unchecked malloc."
          },
          {
            "lang": "es",
            "value": "La funci\u00f3n rfbProcessClientNormalMessage en libvncserver/rfbserver.c en LibVNCServer 0.9.9 y anteriores no maneja correctamente los intentos de enviar una cantidad grande de datos ClientCutText, lo que permite a atacantes remotos causar una denegaci\u00f3n de servicio (consumo de memoria o ca\u00edda del demonio) a trav\u00e9s de un mensaje manipulado que est\u00e1 procesado mediante el uso de un \u00fanico malloc no comprobado."
          }
        ],
        "id": "CVE-2014-6053",
        "lastModified": "2026-05-06T22:30:45.220",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 5.0,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 10.0,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ]
        },
        "published": "2014-12-15T18:59:05.643",
        "references": [
          {
            "source": "cve@mitre.org",
            "url": "http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://seclists.org/oss-sec/2014/q3/639"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://secunia.com/advisories/61506"
          },
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            "url": "http://secunia.com/advisories/61682"
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            "url": "http://ubuntu.com/usn/usn-2365-1"
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            "url": "http://www.debian.org/security/2014/dsa-3081"
          },
          {
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            "tags": [
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          },
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          },
          {
            "source": "cve@mitre.org",
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            "url": "https://github.com/newsoft/libvncserver/commit/6037a9074d52b1963c97cb28ea1096c7c14cbf28"
          },
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          },
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          },
          {
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          {
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          {
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          },
          {
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            "url": "https://usn.ubuntu.com/4573-1/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://usn.ubuntu.com/4587-1/"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-19"
              }
            ],
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            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T12:23:41+00:00",
      "cve": "CVE-2014-6053",
      "id": "CVE-2014-6053",
      "initial_release_date": "2014-09-23T00:00:00+00:00",
      "product_status:fixed": "300",
      "product_status:known_affected": "1",
      "product_status:known_not_affected": "4",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "libvncserver: server NULL pointer dereference flaw in ClientCutText message handling",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2014/cve-2014-6053.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-09-16T00:36:55Z",
      "cve": "CVE-2014-6053",
      "id": "CVE-2014-6053",
      "initial_release_date": "2023-02-15T05:27:11Z",
      "product_status:known_affected": "44",
      "product_status:recommended": "105",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2014-6053",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2014-6053.json",
      "version": "13"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.